Acetylene-gas burner.



No. 672,503. Patenfed Ap'r."'23,!.901l. 4[2. T. WILLSON.

AGETYLENE GAS BURNER.

Appustion ma Feb. A21, 1901.)

CHARLES T. WILLSON, OF AMENIA, NEW YORK.

ACETYLENE-GS BURNER.

SPECIFICATION forming part of Letters Patent No. 672,503, dated April23, 1901.

Application filed February 21, 1901. Serial No. 48,277. (No model.)

.To all whom t may concern:

Be it known that I, CHARLES THERON WILL- `SON, a citizen of the UnitedStates, residing at Amenia, in the county of Dutchess and State of NewYork, have invented certain new and useful Improvements in Acetylene-GasBurners; and l do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention relates to burners for acetyleue gas. Burners for thispurpose are ordinarily made with two converging tips, forming twoconverging jets, which impinge upon each other and make a flat flame atright angles to the plane of convergence. The tips have generally beenmade of some heat-re sisting substance, like clay, formed with a fineduct of appreciable length, terminating into a larger openmixing-chamber, into which air-ducts lead. These gas-ducts, however,being necessarily of Very small diameter and some length, soon becomeclogged with the products of decomposition of the acetylene gas, withthe result that the flame speedily grows smokyand losesits illuminatingpower. In experimenting to remedy this serious objection to the burnersin use I discovered that by using as a jet-orice instead of the neduct apin-hole or minute aperture in a thin sheet of mica the orifices, beingof inappreciable length, eifectually prevented any accumulation ofproducts of decomposition therein and produced a iiame which did not inany wise deteriorate after long and continuous use. This feature ofemploying the perforated mica sheet or diaphragm forms the subjectmatterof and is broadly claimed in a prior application for Letters Patentfiled by me February l, 1900, Serial No. 7,674; and the object of thepresent invention is to simplify and improve upon the construction ofburner shown in said application and to provide for the more effectiveand secure mounting of the mica disk in place.

In order that my invention may be fully understood, I shall firstdescribe in detail the mode in which I carry the same into practice andthen point out its various features in the claims.

Reference is to be had to the accompanying drawings, forming apart ofthis specification, in which the same parts are designated by likenumbers in both figures.

Figure I is aside elevation of an acetylene'- gas burnerembodying myinvention; and Fig. 2 is a detail longitudinal sectional view, on agreatly enlarged scale, of one of the tubular arms of the burner-frameand the parts of my invention attached thereto.

Referring now more particularly to the drawings, the numeral lrepresents the stem of an acetylene-burner frame of the usualconstruction, having the divergent arms 2 terminating in the convergentextremities 3, in which fit the burner-tips, which, as usual, arearranged to make a flat flame at right angles to the plane ofconvergence.

In carrying my invention into practice I form each converging extremity3 of the burner-frame with interior screw-threads and fit within saidextremityan exteriorly-threadf ed nipple 4E, which formsa chamber,through which the gas passes on its way to the burnertip 5, which isfitted upon the outer end of said nipple 4. The tip 5 is formed with atapered or frusto-eonical mixing-chamber 6, having lateral openings 7for the inlet of air thereto, and has an enlarged cylindrical base 8,which is interiorly screw-threaded to reeeive the outer screw-threadedend of the nipple 4. This cylindrical base 8 is in open communicationwith the mixing-chamber 6, and at its point of junction therewith isformed with an interior shoulder 9. Against this shoulder is fitted themica disk or diaphragm 10, having one or more minute apertures 11,forming jet-orifices for the passage of the gas from the gas-chamberformed by the nipple I to the mixing-chain ber 6. A washer I2 bearsagainst the under side of the mica disk or diaphragm,and with thiswasher contacts the outer end I3 of the nipple et, which is formed witha blunt or rounded surface 14 to tit snugly against the under side ofsaid washer and press the same and the disk firmly against the shoulder9, so as to provide a tight joint. The gas ilows through the stem l,divergent arms 2, and convergent extremities 3 of the burnertip to thegas-chambers formed by the nipples 1I, and thence through thejet-orifices in the mica disk to the mixing-chambers of the burner-tips,where it is mixed with the air and forms two upwardly-converging jets,Which impinge upon each other and form when lighted a flame of perfectcharacter and high illuminating power.

The j et-oriiices in the mica diaphragm being of practically no lengthgive no place or opportunity for the accumulation of the products ofcombustion, which is so detrimental to the burners in common use,wherein the jets issue from ducts of some length. By mounting the micadisks in the manner herein shown and described it will be seen that saiddisks Willbe firmly clamped in position, While they are readilyaccessible for removal and the substitution of new disks wheneverrequired. The purpose of employing the Washer and rounding or bluntingthe cooperating` end of the nipple is to adapt the mica disks to befirmly clamped Without danger of injury thereto or causing the disks tobuckle and throw the jet-orifices therein out of proper line.

If desired, the nipple 4 may be formed by exteriorly threading the outerportion of the converging extremity 3 of each burner and directlyconnecting the tip thereto. The threaded end of the extension 3 will inthis case serve, like the nipple, as a coupling inember, acting toconnect the tip to the burnerfraine and to clamp the mica disk in place.

Having thus fully described myinvention, whatI claim as new, and desireto secure by Letters Patent, is-

l. Aburner for acetylene provided with a gas-supply chamber, anair-mixing chamber, a shoulder at the junction ofsaid chambers, and amica diaphragm clamped between said shoulder and the gas-supply chamberand formed witha jet-orifice, substantially as described.

2. A burner for acetylene gas provided with an air-mixing chamber havingat the base thereof a shouldera mica diaphragm bearing against saidshoulder and formed with a jet-orice, and a coupling connectionformeraeos with a jet-oriice, a Washer bearing againstA said diaphragm,and a coupling connection upon which the tip is fitted, said coupling'connection being formed with a rounded end for clamping the washer anddiaphragm in place, substantially as described.

5. A burner for acetylene gas, comprising` a burner-frame formed withconverging eX- tensions, burner-tips provided with air-mixing chambersand shoulders at the bases thereof, mica diaphragms bearing against saidshoulders, washers bearing against the mica diaphragme, and couplingconnections between said tips and the convergent extensions ot' theburner-frame and acting to clamp the Washer and diaphragm against saidshoulders, substantially as described.

6. A burner for acetylene gas, comprising a tip formed with anair-mixing chamber and an enlarged cylindrical base exteriorly screwthreaded and provided with a shoulder, a perforated mica diaphragmresting against said shoulder, a Washer resting against the diaphragm,and an eXteriorly-threaded nipple fitted within said cylindricalextension and formed With a rounded end for clamping the washer and diskagainst the shoulder, substantially as described.

In testimony whereof have 4hereunto set my hand in presence of twosubscribing witnesses.

C. T. WILLSON. Witnesses:

C. H. Davis, J r., J. L. BARRETT.

